BS 6344-2:1988被替代
Industrial hearing protectors. Specification for ear plugs
出版：British Standards Institution
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基本信息
标准编号： BS 6344-2:1988
发布时间：1988/9/30 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：0
标准简介
Requirements for materials, construction, assumed protection, sizing and marking and the provision of user instructions for ear plugs, excepting those ear plugs incorporating a semi-rigid interconnection, a communication facility or those in which the acoustic performance is claimed to be dependant upon amplitude.
标准备注
© British Standards Institution 2013
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